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melanism    
n. 黑变病

黑变病

melanism
n 1: a condition characterized by abnormal deposits of melanin
(especially in the skin) [synonym: {melanosis}, {melanism}]


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  • Melanism - Wikipedia
    Melanism is the congenital excess of melanin in an organism resulting in dark pigment Pseudomelanism, also called abundism, is another variant of pigmentation, identifiable by dark spots or enlarged stripes, which cover a large part of the body of the animal, making it appear melanistic
  • MELANISM Definition Meaning - Merriam-Webster
    The meaning of MELANISM is an increased amount of black or nearly black pigmentation (as of skin, feathers, or hair) of an individual or kind of organism
  • Difference Between Albinism, Melanism And Leucism
    Albinism, melanism, and leucism all involve pigmentation, but each refers to a different aspect of pigment production Albinism is the complete absence of melanin, resulting in pale skin, hair, and eyes Melanism is the opposite, characterized by an excess of melanin, leading to darker pigmentation
  • Leucism vs Albinism vs Melanism in Humans (Explained)
    Leucism, albinism, and melanism are conditions related to pigmentation in organisms Albinism is characterized by the absence of melanin and can cause vision problems and increased sun sensitivity in humans Melanism is the presence of an abundance of melanin, but it is not observed in humans
  • Melanism in Humans: Genetic Factors and Health Perspectives
    Melanism in humans refers to an increased presence of melanin, the pigment responsible for skin, hair, and eye coloration While variations in pigmentation are common, melanism represents a more pronounced form of this trait Understanding its causes and implications provides insight into genetics, adaptation, and potential health effects
  • Skin Pigment Disorders - Johns Hopkins Medicine
    What are skin pigment disorders? Skin color is determined by a pigment (melanin) made by specialized cells in the skin (melanocytes) The amount and type of melanin determines a person's skin color Melanin's role is to protect DNA in body cells from sun damage It gives color to the skin, hair, and
  • Melanism: Evolution in Action - Oxford Academic
    Majerus, Michael E N, 'What is melanism?', Melanism: Evolution in Action (Oxford, 1998; online edn, Oxford Academic, 31 Oct 2023), https: doi org 10 1093 oso 9780198549833 003 0001, accessed 1 June 2025
  • What does melanism mean? - Definitions. net
    Melanism is a development of dark-colored pigment in the skin or its appendages and is the opposite of albinism Historically, it was also the medical term for black jaundice The word 'melanism' is deduced from the Greek: μελανός, meaning black pigment
  • Melanism | definition of melanism by Medical dictionary
    melanism a condition in which excessive production of MELANIN produces unusual dark colour or blackness in scales, skin or plumage see INDUSTRIAL MELANISM
  • Albinism vs. Melanism: Whats the Difference?
    Albinism is a genetic condition causing a lack of melanin, resulting in white or pale skin, hair, and eyes Melanism is a genetic condition leading to an excess of melanin, causing dark pigmentation in skin, hair, or feathers





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